Throwing it out the Windows: Exfiltrating Active Directory credentials through DNS - GoSecure
Create Fine Grained Password Policies (Step-by-Step-Guide) - Active Directory Pro
How to check password change history in Active Directory
Programming your own password filter .dll - Specops Software
GitHub - lithnet/ad-password-protection: Active Directory password filter featuring breached password checking and custom complexity rules
GitHub - jephthai/OpenPasswordFilter: An open source custom password filter DLL and userspace service to better protect / control Active Directory domain passwords.